CVE-2026-8027 FlowiseAI Flowise User Controller authorization
Attackers can bypass authorization in FlowiseAI Flowise by manipulating user and organization identifiers, potentially accessing unauthorized resources.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-8027?
CVE-2026-8027 is a medium-severity authentication bypass vulnerability in Flowiseai Flowise, published on 6 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A weakness has been identified in FlowiseAI Flowise up to 3.0.12. Affected by this vulnerability is an unknown functionality of the component User Controller Handler. This manipulation of the argument userId/organizationId/workspaceId/email causes authorization bypass. The attack may be initiated remotely. The affected component should be upgraded.
Which versions are affected by CVE-2026-8027?
It affects 1 product.
Products include Flowiseai Flowise.
How do I fix CVE-2026-8027?
No fix has been published for CVE-2026-8027 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-8027 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-8027 exists.
Other vulnerabilities in Flowiseai Flowise
- CVE-2025-71338 Flowise through 2.2.7 - Arbitrary File Write to Remote Code Execution via document-store API
- CVE-2026-40933 Flowise: Authenticated RCE Via MCP Adapters
- CVE-2025-61913 Flowise is vulnerable to arbitrary file read, arbitrary file write
- CVE-2025-59528 Flowise has Remote Code Execution vulnerability
- CVE-2026-52098 Code injection in n/a
Sources
Also known as GHSA-3qmj-rc63-mhjw.